baber/WOPTO huggingface dataset:
Patent GB-673394-A (GB)
Title: Improvements relating to brake operating levers for motor vehicles
IPC: B62D25/24
Filed: 1950-02-15
Abstract: 673,394. Brake operating levers. CROSSLEY MOTORS, Ltd., and RANDLE, F. E. Feb. 7, 1951 [Feb. 15, 1950], No. 3851/50. Class 103 (i). The slot b in which works a brake-operating lever a, is adapted to be closed by a sliding clasp fastener c and the sliding clasp f is secured (by its tag e and a link g) to the lever a so that when the brake is applied, the fastener is opened to the extent to which the lever is moved in the slot but when the brake is released, the fastener is closed and no draught can pass into the driver's compartment except through any space immediately around the lever. If desired two superposed fasteners may be provided, connected one to each side of the lever, so that when the lever is moving in either direction one fastener is being closed and the other opened.
Patent GB-116870-A (GB)
Title: Improvements in Regenerative Gas Furnaces.
IPC: F28D17/04
Filed: 1918-03-05
Abstract: 116,870. Harvey Gas Furnace Co., E. W., and Harvey, E. W. March 5, 1918. Reverberatory furnaces.-In a reheating furnace of the kind in the finishing is heated by a reversible flame and the draught is so controlled that a portion of the gas is drawn con. tinuously along the pre-heating hearth, the air currents only are reversed, the gas being supplied in a number of continuous streams. In one arrangement. Fig. 3, the gas is delivered through a set of ports b in the end wall of the finishing hearth, the air is supplied from one or other of the regenerators d. d<1> through the corresponding ports a or a<1>. The main body of the combustion products escapes through the other regenerator, white the remainder is drawn along the preheating hearth in the usual manner. The air ports may be above the gas ports, as shown, or below them, or one set may be above and the other below, or both sets may be between gas ports above and below. The two sets of air ports may be in the same horizontal plane. If a low furnace is desired the gas ports only are arranged in the end wail, the air being delivered vertically through ports in the hearth. Where the ingots are pushed right through the furnace Instead of being withdrawn through a lateral opening, the cas and air ports are arranged in the side walls of the finishing hearth.
Patent GB-1407335-A (GB)
Title: Process for the continuous manufacture of abrasion-resistant  freely-flowing sodium perborate
IPC: C01B15/12
Filed: 1973-01-25
Abstract: 1407335 Sodium perborate KALI-CHEMIE AG 25 Jan 1973 [31 Jan 1972 (2)] 3875/73 Heading C1A [Also in Division G3] In a process for the manufacture of abrasionresistent freely-flowing sodium perborate with a bulk density of 0À75 to 0À85 kg./litre, a sodium metaborate solution is reacted with hydrogen peroxide in an aqueous suspension of sodium perborate thereby to form a crystal suspension of sodium perborate and the solution and the hydrogen peroxide are continuously fed to a reaction vessel at such rates as to maintain in the reaction vessel a molar ratio of NaBO 2  : H 2 O 2  of 1 : 0À35 to 1 : 0À1 in the mother liquor, the crystal suspension being constantly removed from the reaction vessel in an amount corresponding stoichiometrically to the quantity of NaBO 2  supplied, and the crystals being thereafter separated from the mother liquor and dried. During crystallization either the density or the refractive index and sodium metaborate solution or hydrogen peroxide is automatically added in measured quantity through a valve which is regulated in dependence on the measured density or refraction index values so as to maintain the specified molar ratio.
Patent GB-113857-A (GB)
Title: Improvements in Automatically Disengaging Clutch Mechanism for use as a Starting Mechanism for Internal Combustion Engines and for other purposes.
Inventor: DOBSON ERNEST
IPC: F02N1/00
Filed: 1917-03-19
Abstract: 113,857. Dobson, E. March 19, 1917. Turning-gear.-A clutch for coupling a starting- handle to its shaft is of the kind in which a pawl pivoted on the handle and adapted to couple the handle to its shaft is released in the event of reversal by a non-reversing member having a slot or incline engaged by a pin or projection on the pawl. The non-reversing member is a free-wheel ring f provided at its periphery with an inclined projection g, engaged by one or two pins on the pawl k, which is pivoted at k<1> on the handle a and engages a notched disk j fast on the shaft b. In the form shown, the pawl has two pins l, m; the pin l engages a notch g<2> in the projection g and carries the disk f round with the starting-handle. On reversal of the shaft b, the disk f is held against rotation and the pin m rides up the proiection g and retracts the pawl. In a modification, the pawl carries a single pin engaging an inclined slot in the projection g, and the end of the pawl bears against one of a pair of arms carried by the shaft b.
Patent GB-469779-A (GB)
Title: Improvements in fuse boxes or holders
IPC: H01H85/20
Filed: 1936-02-10
Abstract: 469,779. Fusible cut-outs. HOLLAND, F. A. Feb. 10, 1936, No. 4026. [Class 38 (i)] A casing for a fuse is provided with openings 11, 12 for insertion and discharge of fuse elements and with a push-button 13 by means of which a fresh element resting on a ledge 10 in front of the terminals 5, 6 may be forced between guiding walls 4 into position between the terminals and at the same time eject the old cartridge. In a modification the base consists of a solid block containing spring-plunger terminals and bored to provide channels for the insertion and removal of the fuse elements.
Patent GB-123749-A (GB)
Title: Sectional Bars for Air-craft Construction.
IPC: B64C25/00
Filed: 1919-02-18
Abstract: 123,749. Stabilimenti " Biak " Ing. A. Pouchain. Feb. 21, 1918, [Convention date]. Framework. - Bars for aircraft structures are formed of I-section with the flanges bent or curved towards the plane of the web. Fig. 1 shows one form, but the curvature of either or both the flanges may be reversed or one of the flanges may be flat. Figs. 5 and 6 show two other forms.
Patent GB-607661-A (GB)
Title: Improvements relating to electric fires
IPC: F24C7/06
Filed: 1946-02-11
Abstract: 607,661. Electric heating. KLOET, G. S, and COMMERCIAL ELECTRIC CO., Ltd. Feb. 11, 1946, No. 4155. [Class 39(iii)] In an electric fire, toaster or the like having one or more bar elements a arranged in front of a reflector d, the resistance winding c is wound back and forth over the curved surface of the bar at the side only which faces the reflector, so that substantially all the heat is reflected. In one example, the reflector and bar are of D-shape the wire being wound as shown around spaced projecting nets or lugs b. In another example, Fig. 4 (not shown), two bars are used, each constituting a quarter of a solid cylinder. The bars may be grooved on their curved faces to accommodate the wire. In a radiator having a number of bars the reflector may be divided into compartments, each containing one or more bars.
Patent GB-422741-A (GB)
Title: Improvements in apparatus for manufacturing articles of reinforced concrete
IPC: B28B23/12
Filed: 1934-02-08
Abstract: 422,741. Reinforced concrete. FREYSSINET, E., 28, Rue St.-James, Neuilly-sur- Seine, France. Feb. 8, 1934, No. 4207. Convention date, Feb. 9, 1933. [Class 20 (iv)] In apparatus for subjecting to tension the reinforcements of reinforced-concrete articles, the reinforcements 9 are guided in divergent curved gutters 12, the ends of which bear against the mould 1 and stretching devices 13 respectively, so that these devices can be easily disposed between the gutters. The reinforcing wires 9 are held at one end by gripping members 5, such as those described in Specification 393,576, [Group V], and are wound on reels 6 mounted on the frame 7. The wires 9 are gripped by the jaws 13 which are simultaneously displaced by hydraulic jacks 14 to tension the wires. Additional gripping members are then introduced through the holes 4 and the wires are cut off outside the mould. To facilitate cutting the wires, they may be heated by blowpipes at the point of severance through holes in the mould which are afterwards closed by plugs. The mould may comprise two parts of sheet metal, stiffened by ribs, and held together by straps.
Patent GB-952998-A (GB)
Title: Improvements relating to differential amplifiers
IPC: B61L1/20
Filed: 1961-02-06
Abstract: 952,998. Electric analogue calculating circuits. WESTINGHOUSE AIR BRAKE CO. Feb. 6, 1961 [Feb. 2, 1960], No. 4330/61. Heading G4G. A differencing circuit comprises two storage devices for storing the potentials to be compared, respective discharge paths for the storage devices including respective opposed primary windings on a transformer and means for making initially conducting only the discharge path associated with the storage device which stores the higher potential until the potentials on the devices are equal, when a potential difference proportional to the difference between the original stored potentials is induced in a secondary winding on the transformer. Two capacitors 17,19 form the storage devices and the inputs to each are applied via resistors 12, 14 and diodes 11, 13 respectively. The discharge paths of each condenser consist of respective opposed identical primary windings 21, 23 on a transformer 25, diodes 27, 29 to ensure that only the capacitor with the higher voltage discharges initially, and a transistor 30, having an associated current limiting device consisting of a battery 53, resistor 51 and diode 49. A capacitor 35 is coupled with the transistor to dampen the initial surge of current through the primary windings 21, 23. A gate 34 makes the transistor 30 non conducting to allow the inputs 1N 1 , 1N 2  to charge the capacitors 17, 19 and conducting to discharge the capacitors through the windings 21, 23. The two signals 1N 1 , 1N 2  need not be simultaneous and may be separated in time by an amount depending upon the value of the circuit components. In the configuration shown the two inputs are both positive, but if the diodes are reversed and a P-N-P transistor is used, both inputs may be negative. When the transistor 30 is gated to conduct, the capacitor with the higher voltage, e.g. 17, discharges through the winding 21 and the transistor 30. The capacitor 19 will not discharge directly due to the diode 29 being reversed biased. The increasing current flowing through the winding 21 induces an equal increasing current in the winding 23 until the voltages of the two points 44,46 are equal when both capacitors 17, 19 will discharge together. At this equality the voltage at the points 44, 46 is the mean of the two input voltages and the voltage drop across each winding is equal to half the difference of the inputs. By suitable choice of the number of turns for the secondary windings 37, 39 the outputs at E 1  and E 2  can be made of absolute value equal to the difference in the input voltages or any proportional value. Specification 952,996 is referred to.
Patent GB-1450463-A (GB)
Title: Vinyl chloride copolymers
IPC: C08F14/00
Filed: 1974-01-30
Abstract: 1450463 Vinyl chloride/maleate or fumarate mono- and di-ester copolymers WACKERCHEMIE GmbH 30 Jan 1974 [31 Jan 1973] 04356/74 Headings C3P and C3R Copolymers having a K-value of 25 to 38 measured in cyclohexanone comprise (i) 65 to 80% by weight of units derived from vinyl chloride (ii) 15 to 27% of units derived from a diester of maleic or fumaric acid with a C 9  to C 15 -alcohol having at least 2 branches in the carbon chain and (iii) 3 to 15% of units derived from a monoester of maleic or fumaric acid with a C 9  to C 15 -alcohol having at least 2 branches in the carbon chain, the percentages being calculated relative to the total weight of the polymer. Examples are given in which the copolymers are produced by a process in which the diester and monoester are pre-emulsified in water containing potassium persulphate and sodium n-dodecyl benzene sulphonate prior to copolymerization in an autoclave containing vinyl chloride and trichloroethylene. Solutions of the copolymers and alkyd resins are prepared.
Patent GB-123844-A (GB)
Title: Improvements in Mechanical Toys.
Inventor: ARTHUR ALEXANDER GEORGE
IPC: A63H7/04
Filed: 1918-03-13
Abstract: 123,844. Arthur, A. G., and Church, H. S. March 13, 1918. Mechanical toys. - A wheeled carriage is adapted to carry a " Teddv bear " to the head and fore-limbs of which motion is given. In the arrangement shown in Fig. 2, the " Teddy bear " is secured in position by a clip F<2> consisting of two plates detachably connected by studs. The upper plate carries a wire E passing into the head of the bear, the lower plate being carried on a spindle fixed to a block D to which an oscillatory motion is given by rods C connected to cranks B on the front axle of the carriage. It is stated that this arrangement causes the bear's head to move. The fore limbs are moved by rods O connected to the rods C. In a modification, the bear stands on the carriage, and the block D is oscillated by an arm engaging a cam groove on a roller fixed to the front axle. An extension on the arm gives a rocking movement to a lever connected by rods to the fore limbs of the bear.
Patent GB-290378-A (GB)
Title: Improvements in or connected with mechanically operated electric switches and the like
IPC: H01H3/50
Filed: 1927-02-17
Abstract: 290,378. Electric Control, Ltd., and Bergmann, O. O. F. Feb. 17, 1927. Controllers, actuating and interlocking; controllers, multiple rocking bar. - In electric controllers comprising a number of cam-operated contactors, mechanical locks prevent the movement of the contactors until given circuit conditions are attained. Fig. 1 shows one contactor 10 mounted on a rocking cam-member 4 engaging a roller-edged segment 1 secured to the operating spindle 2. A spring 7 tends to close the contactor when the segment is turned clockwise, and a latch 16 prevents the closure until a series electromagnet 27 is weakened sufficiently to allow a spring 21 to release the latch. A group of such contactors arranged to cut out resistance in a motor circuit and provided respectively with latches and series magnets constitutes one form of controller or starter according to the invention. The action of the latches may be retarded by dash-pots. Mechanical interlocks may be provided between separate contactors and between separate elements of reversing switches. The motor may be a pilot motor for operating the controller of a main motor which is required to accelerate at a rate conforming to current-value and timelimit conditions.
Patent GB-699648-A (GB)
Title: Improvements in or relating to the polymerisation of polyfunctional monomers
IPC: C08F36/20
Filed: 1951-02-23
Abstract: Synthetic resins are prepared by mixing divinyl benzene or an unsaturated ester of a non-hydroxylic carboxylic acid which contains at least two polymerizable ethylenic linkages with a saturated aliphatic aldehyde, the amount of aldehyde being at least 50 per cent by weight of monomer, and heating the mixture to form an ungelled composition containing a fusible polymer in an amount which is at least one-fourth the quantity by weight of the monomer originally mixed.  Preferably 0.4 to 4 parts by weight of an organic peroxide, such as benzoyl or diacetyl peroxide, is added for each 100 parts of monomer.  The aldehyde may be butyraldehyde, acetaldehyde, propionaldehyde or 2-ethyl hexaldehyde, and the polymer may be precipitated from the reaction mixture by the addition of an ether, alcohol or aliphatic hydrocarbon.  Unsaturated esters which may be used are diallyl maleate, fumarate, succinate and phthalate, divinyl succinate and sebacate, ethylene glycol diacrylate, and allyl acrylate, methacrylate or crotonate.  Two or more of the polyfunctional monomers may be copolymerized and one or more may be copolymerized with one or more monofunctional monomers such as vinyl acetate, vinyl propionate, styrene, ethyl acrylate, butyl acrylate and butyl methacrylate.  In some instances, such as the polymerization of diallyl maleate in the presence of butyraldehyde, the aldehyde appears to enter into the resin-forming reaction.  The resins may be further polymerized to the thermosetting state by heating at 100-250 DEG  C. or by exposing them to ultra-violet light. The fusible polymers of the invention may be used for the preparation of moulding compositions, surface coatings and laminated articles. Specification 571,496 is referred to.
Patent GB-338454-A (GB)
Title: Improvements relating to blasting in mines and quarries
IPC: F42D1/00
Filed: 1930-02-10
Abstract: 338,454. Tschenn, V. Feb. 11, 1929, [Convention date]. Blasting; hydraulic mining; jet apparatus. -Bore-holes are provided with spherical enlargements 11 to receive blasting charges by forcing hydrochloric &c. acid 'in fine jets through a longitudinally-displaceable nozzle 8 ; the acid is forced from a container 9 by compressed air supplied from a reservoir 10. A small preliminary charge may be exploded in the bore-hole to facilitate the action of the acid.
Patent GB-949861-A (GB)
Title: Improvements in production of titanium and titanium-base alloys
Inventor: DASH JOHN
IPC: C22F1/18
Filed: 1961-02-07
Abstract: A method of reducing strength directionality in titanium and titanium-base alloys comprises unidirectionally hot rolling the metal into strips and thereafter annealing at 50-200  DEG F. below the beta transus temperature.  The annealing may be a box anneal. The hot rolled and annealed strip may be given a unidirectional cold rolling followed by a further anneal and between the cold rolling and annealing may be subjected to a solution treatment above the beta transus.  Prior to hot rolling the metal may be heated to a temperature from 50 DEG F. below to 400  DEG F. above the beta transus temperature.
Patent GB-1512619-A (GB)
Title: Data processing apparatus
IPC: G06F11/00
Filed: 1977-02-04
Abstract: 1512619 Data processing systems INTERNATIONAL BUSINESS MACHINES CORP 4 Feb 1977 [30 March 1976] 04598/77 Heading G4A Circuitry 14, Fig. 1, detects when the length 12 of a data area to receive the result of executing an instruction is exceeded by the length of the data. For example, if an ADD instruction specifies first and second operand start addresses and lengths (in bytes) and the result is to be stored at the first operand address, a size exception may occur if the length of the second operand is greater than the length of the first operand. Size exceptions can also occur with 3-address instructions specifying the start address and length of the result area as well as those of the operands. The circuitry is described in association with an 8-byte parallel adder 20 of the type disclosed in Specification 1,512,476, which is capable of operating on operands in zoned or packed decimal format or in pure binary code. Inputs to the circuitry are the length 12, of the receiving area, the result data 13 and overflow output 23 of the adder 20 and control signals specifying the data format and whether a first or subsequent pass through the adder is being performed (for operands of more than 8 bytes). The size exception output is generated if the result includes significant digits lying outside the length of the receiving area (including the overflow condition).
Patent GB-909048-A (GB)
Title: Improvements in or relating to shower caps
IPC: A42B1/12
Filed: 1961-02-08
Abstract: 909,048. Caps. POLLACK, S., and FINSILVER, D. Feb. 8, 1961 [Feb. 12, 1960], No. 4633/61. Class 63. A shower cap 10 comprises waterproof film material gathered on to an elastic headband 20 and stiffened by non-resilient strips 14 which are deformable by hand to vary the shape of the cap and support the cap in the shape chosen. The strips may be formed of plastics material, stiffened textile material or metal and may be secured on the inner face of the cap. An alternative arrangement of strips is shown in Fig. 5.
Patent GB-575495-A (GB)
Title: Improvements in or relating to devices for testing coils of insulated wire
IPC: G01R31/72
Filed: 1944-03-15
Abstract: 575,495. Indicating faults ; impedance measurements. FROGLEY, G. J. March 15, 1944, No. 4805. [Class 37] A device for detecting faults in inductance coils comprises a balanced A.C. bridge, one arm of which contains an inductance with an extended iron core, over which may be placed the coil under test. Short circuited turns in the latter will cause the balance of the bridge to be disturbed, while if the ends of the coil be connected together, open circuit will then show by causing the bridge balance to remain undisturbed. The two secondary windings 2, 3 of the step-down transformer 1 comprise two arms of the bridge, the other arms being the preset adjustable resistance 16 and the series resonant circuit formed by the condenser 8 and inductance 9. The iron core 10 of the latter is extended to project outside the apparatus so that coils under test may be placed over it. The balance of the bridge may be adjusted by means of a potentiometer 13 and is detected by the bridge-connected rectifier 12 and the meter 15. A switch 17 is arranged so that in position (1) the transformer 1 is disconnected from the A.C. supply 7 and the meter 15 short-circuited in position (2) the meter 15 remains short circuited while the A.C. supply 7 is connected to the apparatus, and in position (3) the short-circuit across the meter is removed and the apparatus ready for use.
Patent GB-431631-A (GB)
Title: Radio receiver
IPC: H03G3/26
Filed: 1934-09-25
Abstract: 431,631. Wireless receiving-apparatus. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.- (Assignees of Wheeler, H. A. ; 18, Melbourne Road, Great Neck, New York, U.S.A.) Sept. 25, 1934, No. 4811/35. Convention date, Oct. 3, 1933. Divided out of 430,787. Drawings to Specification. [Class 40 (v)] The subject-matter is identical with Specification 430,787. The claims relate to the muting means for suppressing signals below pre-determined limits.
Patent GB-888966-A (GB)
Title: Nitroso derivatives of polymers and copolymers of ethylenically unsaturated monomers and process for the production thereof
Inventor: BAUMGARTNER PIERRE
IPC: C08F8/30
Filed: 1959-02-11
Abstract: Nitroso derivatives of polymers are prepared by subjecting the polymers to photochemical radiation in an anhydrous medium in the presence of a halogenated derivative of an oxide of nitrogen, e.g. nitrosyl chloride or bromide, optionally prepared in situ. Polymers specified are those derived from ethylene and/or its homologues such as propylene, derivatives of ethylene and/or its homologues, isobutylene, vinyl chloride and acrylonitrile.  The polymers being radiated may be in the form of shaped articles (such as containers particularly flasks, plates or sheets), in which case reaction may be confined to the surface.  The products have a blue or green colouration.